Walther Ludwig (17 March 1902 – 15 May 1981) was a German operatic lyric tenor, particularly associated with Mozart roles and Schubert lieder.
He then sang in Schwerin, where he created the title role in Paul Graeners's Friedmann Bach in 1931.
He joined the Städtische Oper Berlin in 1932, where he established himself in Mozart roles such as Belmonte, Don Ottavio, Tamino, Idomeneo, Ferrando, etc.
He also made guest appearances at La Scala in Milan, the Paris Opéra, the Royal Opera House in London, the Liceo in Barcelona.
He was the very moving Evangelist in a live 1950 Vienna performance of Bach's Matthew Passion under Karajan, in which Kathleen Ferrier sang, now available on CD.